长春市初冬季节大气PM10的微观形貌特征与来源分析

摘要

Morphology and sources of inhalable particle ( PM10 ) were investigated using scanning electron mi-croscopy ( SEM) .The results showed that four main types of particles were identified including soot aggregates , fly ashes , minerals and the unknown particulate , of which soot aggregates and fly ashes were the main particulates in a pollution haze .The combustion of agricultural biomass around Changchun and its neighboring provinces was the main source of PM10 in the early winter accompanying a haze condition .%应用扫描电子显微镜(SEM)研究长春市区初冬季节(2015年10月)可吸入粒子(PM10)的微观形貌并探讨其来源.结果表明,长春市区的可吸入颗粒物主要有:烟尘集合体、燃煤飞灰、矿物颗粒及未知颗粒,其中雾霾天气下以烟尘集合体和燃煤飞灰为主.长春市周边及邻近省份地区农业生物质燃烧是初冬季节雾霾天气下PM10的主要来源.